/*
 * Copyright [2021-present] [ahoo wang <ahoowang@qq.com> (https://github.com/Ahoo-Wang)].
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *      http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package me.ahoo.wow.messaging.function

interface MessageFunctionRegistrar<F : MessageFunction<*, *, *>> {
    val functions: Set<F>
    fun register(function: F)
    fun unregister(function: F)
}

interface SingleMessageFunctionRegistrar<F : MessageFunction<*, *, *>> :
    MessageFunctionRegistrar<F> {
    fun getFunction(supportedType: Class<*>): F?
}

interface MultipleMessageFunctionRegistrar<F : MessageFunction<*, *, *>> : MessageFunctionRegistrar<F> {
    fun getFunctions(supportedType: Class<*>): Set<F>
}
